BindUtils.postGlobalCommand is only working for default values (first two params null).
Desktop scope is quite limiting for us as we want do communicate between portlets - same session, different desktop.

This is not working:
BindUtils.postGlobalCommand("ZkossQueue", EventQueues.SESSION, "onRefreshValues", null);

Initialization of the Queue did not help either
EventQueues.lookup("ZkossQueue", EventQueues.SESSION, true);